Autocomplete dropdown with command suggestions grouped by category (native backend data).

      <.autocomplete
      mode={:command}
      items={["Channel", %{name: "join", description: "Join a channel"}]}
      selected_index={0}
      />
    

Autocomplete showing nick suggestions with online status dots and color classes.

Autocomplete showing channels with joined checkmark and user counts.

Autocomplete for subcommands (e.g., /ns options).

Autocomplete with no matching results.

Autocomplete with visible=false (nothing renders).